Petroleum incandescent lamp.



No. 627,822. Patented June 27,' I899. M. A. F. A., M. A. L. A. &. E. E. HANTZ.

PETBOLEUM INCANDESGENT LAMP.

(Applicgtion filed July 9, 1897.)

(No Model.)

m: Noam PzTEns 0o, mom-Luna" WASNINGTON. n. c.

T0 aZZ whom it may concern:

MARIE AMANDINE FERNANDE ALICE HANTZ, MARIE ALFREDE LEONTINE ADRIENNE HANTZ, AND EUGENE EDGARD HANTZ, OF PARIS, FRANCE.

PETROLEUM INCANDESC ENT LAM P.

SPECIFICATION forming part Of Letters Patent NO. 627,822, dated June 27, 1899. Application filed July 9, 1897. Serial No. 643,939. (No model.)

Be it known that we, MARIE AMANDINE FER- NANDE ALIoE HANTZ, MARIE ALFREDE LEoN- TINE ADRIENNE HANTZ, and EUGENE EDGARD HAN'TZ, citizens of the French Republic, and residents of Paris, France, have invented certain new and useful Improvements in Petroleuni Incandescent Lamps, (for which patents have been granted in Great Britain, No. 23,053, dated December 2, 1895; in Germany, No. 87,965, dated August 15, 1895-; in Spain, No. 20,500, dated April 27, 1897; in France, No. 245,945, dated March 19, 1895, patent of addition dated June 14, 1895, patent of addition dated January 30,1896, patent of addition dated May 5, 1896, patent of addition dated May 16-, 1896, and patent of addition dated December 18, 1896; in Belgium, No. 117,524, dated September 21, 1895, patent of improvement, No.12l,536, dated May 22, 1896, patent of improvement, No. 125,259, dated December, 18, 1896, and in Switzerland, No. 11,191, dated September 30, 1895,) of which the following is a specification.

This invention relates to mantle-lamps of the class wherein the vapor or gas from petroleum or other suitable oil is burned to render the mantle incandescent. In these lamps the oil is forced by means of compressed air into a vaporizing or gasifying device, where it is vaporized by the heat of the flame and then led to the burner.

The object of the present invention is in part to improve the device for cleaning the gas-outlet nozzle, in part to improve the means for regulating the air-pressure in the petroleum-reservoir, in part to improved means for extinguishing the lamp, and in part also to other features of improvement, which Will be hereinafter described, and carefully defined in the claims.

In the accompanying drawings the invention is illustrated as embodied in ahand-lamp.

In the drawings, Figure 1 is a'vertioal midsection of the lamp. Fig. 2 is a side elevation, on a larger scale than Fig. 1, of the vaporizer detached, the View showing the vaporizer as seen from the left in Fig. 1. Fig. 3is a section of the upright tube of thevaporizer. Fig. 1 is a view showing the burner-nozzle in section and also showing the operative end of the cleaning-needle on a large scale; and Fig. A is a cross-section of the tip of the cleaningerence below the oil-chamber.

needle, showing the facets and scraping edges. Fig. 5 is an enlarged View showing the foramivnous burner-tip mounted slidably in the burner. This figure shows the tip in side elevation and plan. Fig. 6 is a view illustrating a modification'of the means for oleaningthe vaporizer-tube, which will be hereinafter de' scribed.

Referring primarily to Fig. 1, the lamp body has in it an oil holder or chamber A and a compressed-air chamber B, arranged by pref- The holder B has an inlet 1) for compressed air, controlled by a valve.

In the holder B is a pressure reducing and regulating device whereby air from the cham ber B is supplied to the oil-chamberA above the oil therein at a predetermined uniform pressure. This device consists of a chamber 0, into which air from the holder B is admitted at an inlet D, controlled, by a pressurereducing valve device. Across the chamber O is a flexible diaphragm E, and the chamber 0 above this diaphragm is connected with the upper part of the oil-chamberA by a pipe o. The valve d of the air-inlet is held down to its seat by a light spring 6 on its stem,

and the diaphragm E is pressed up to the button or head on the stem of the valve cl by a spring 6 at the opposite side of or below the diaphragm. Then the air-pressure in the oil-chamber and in the chamber 0 is up to the predetermined point, the diaphragm E will be depressed andthe valve d closed but if the pressure in the chamber 0 falls below this point the spring 6' will raise the diaphragm and with it the valve d and admit air from the chamber B to bring the pressure up to the required point. In order to provide means for varying the tension of the spring 6, it is supported in an apertured thimble F, which screws into the lower part of the chamher 0. By screwing this support in or out the tension of the diaphragm-spring a will be varied.

The oil-supply pipe G depends into theoilchamber A and preferably nearly to the bot- I00 torn thereof, and onits upper projecting end is mounted the vaporizer II. (Seen detached in Figs. 2, 3, and 1.) This vaporizer consists of an upright vaporizing-tube h, from the upper end of which depends a branch tube h, conneeted at its lower end with an upright gasoutlet nozzle h (Seen in section in Fig. 4.) In the upper end of the hollow or bore of the nozzle h is a conical recess h which termi nates at its apex in an attenuated cylindrical outlet 77. for the gas or vapor. In the lower end of the nozzle k is a stuffing-box h through which extends a slidable cleaning-needle h provided at its operative end with a slender cylindrical cleaning-tip 7L adapted to fit snugly in and clean the outlet If, and a cone it, having a scraping edge or edges h to clean the surface of the conical recess it about the outlet. By pushing up the needle 716 the tip h passes through the outlet 71, and cleans it by driving out the matter collected therein. Then by turning the needle axially the scraping edges h clean off the matter collected on the surface of the conical recess ha. The two movements of the needle are independent and must be so in order to operate as above described. In order to rotate the needle axi ally, it is provided with a suitable handle or milled head 71, and in order to move it longitudinally and still leave it free to rotate axially a lever h is mounted on the base of the vaporizer, said lever being provided with a forked head It, the jaws of which engage the head it of the cleaning-needle. By means of this lever the needle may be either pushed in or drawn back.

On the upper end of the vaporizer-tube h and directly over the nozzle 72 is a heat-storing rod I, which serves as a sort of regulating-reservoir of heat for the vaporizer, and in the top of this rod I is set a slender rod 11, on which is supported the ordinary mantle K. Above the nozzle 71 is the burner 70, having openings 71; at its base for the entry of air.

L is the cone, and M the ordinary glass chimney.

The tip k of the burner, which is foraminous, Fig. 5, is mounted so as to be slid up or down in the burner within limits in order to adjust the point of ignition to suit different kinds of oils.

N is the filling-inlet of the oil-chamber. It is provided with a screw-valve n for closing it and has a lateral outlet n for the compressed air that may remain in the oil-chamber when the lamp is to be extinguished. By slightly unscrewing the screw-valve n the air-outlet n will be opened.

The admission of compressed air to the oilchamber through the tube 0 is controlled by a screw or pin valve 0, adapted to be operated by hand from outside of the chamber A. By closing this valve 0 and then opening the airoutlet n the lamp will be at once extinguished.

In order to afford access to the vaporizertube It and tube G for passing a cleaning-wire through them, the top of the tube h may be closed by a screw it, (seen in Fig. 3,) or in lieu of this construction the screw h may be omitted and the tube G be curved, as shown in Fig. 6, and carried through the wall of the oil-chamber, where it will be provided with a cap g. By removing the cap a cleaningwire may be passed upwardly through the tubes G and h. In this modified construction there must be an inlet g for oil to the tube G.

In the top of the oil-chamber is set a tray P to receive alcohol or spirits for heating the vaporizer primarily before lighting the lamp.

It will be noted that the means shown for operating the needle permit the latter to be aperture it, and a cone h which fits the said recess h and has a scraping edge for cleaning, and means for imparting a longitudinal movement, said means consisting of a lever it, having a forked head 77., which loosely engages the operating-head of said cleaningneedle, whereby the latter is left free to rotate, substantially as set forth.

2. A lamp of the character described, provided with an oil-chamber and a compressedair chamber, and having a pressure regulator and reducer comprising an intermediate chamber, open at all times to the upper part of the oil-chamber, and having an aperture or passage communicating with the compressed-air chamber, a valve controlling said aperture, a light spring tending to hold said valve closed, and a diaphragm and spring adapted to open said valve when the pressure in the intermediate chamber is reduced below a predetermined point, substantially as set forth.

3. In a lamp of the character described, the combination with the gas-outlet nozzle and the burner it above and over it, of the foraminous burner-tip 7.2 mounted slidably in the burner, whereby it may be moved up or down for the purposes set forth.

4. In a lamp for burninghydrocarbon gas, the combination with the gas-outlet nozzle, of a cleaning-needle mounted to slide longitudinally and adapted to be operated quickly by hand, whereby the outlet of the nozzle may be cleaned without extinguishing the lamp, substantially as set forth.

In witness whereof we have hereuntosigned our names in the presence of two subscribing witnesses.

MARIE AMANEINE FERNANDE ALICE HANTZ. MARIE ALFREDE LEONTINE ADRIENNE HAN'I'Z. EUGENE EDGARD HANTZ.

Witnesses:

EDWARD P. MAoLnAN, EUGENE I'IANTZ. 

